Erotic Instructions:
You lean against a wall with your legs slightly spread, facing your guy. He grabs onto the backs of your thighs and holds them against his hips, lifting you up and pushing your back into the wall for leverage, then thrusts away.

Additional tips:
When you two are well on your way to the Big O, add intensity by squeezing your thighs a little bit tighter. The extra tension will narrow your vaginal canal, which in turn enhances the friction he feels. Plus, clenching your muscles creates more tension in your body, and thus more pleasure buildup.